io.smallrye.mutiny.helpers

Class ExponentialBackoff

java.lang.Object

io.smallrye.mutiny.helpers.ExponentialBackoff

public class ExponentialBackoff
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static double	DEFAULT_JITTER
static Duration	MAX_BACKOFF

Method Summary

Modifier and Type	Method and Description
static Function<Multi<Throwable>,org.reactivestreams.Publisher<Long>>	randomExponentialBackoffFunction(long numRetries, Duration firstBackoff, Duration maxBackoff, double jitterFactor, ScheduledExecutorService executor) Computes a method that would delay ticks using an exponential backoff.
static Function<Multi<Throwable>,org.reactivestreams.Publisher<Long>>	randomExponentialBackoffFunctionExpireAt(long expireAt, Duration firstBackoff, Duration maxBackoff, double jitterFactor, ScheduledExecutorService executor) Computes a method that would delay ticks using an exponential backoff.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAX_BACKOFF

public static final Duration MAX_BACKOFF

DEFAULT_JITTER

public static final double DEFAULT_JITTER

See Also:

Constant Field Values

Method Detail

randomExponentialBackoffFunction

public static Function<Multi<Throwable>,org.reactivestreams.Publisher<Long>> randomExponentialBackoffFunction(long numRetries,
                                                                                                              Duration firstBackoff,
                                                                                                              Duration maxBackoff,
                                                                                                              double jitterFactor,
                                                                                                              ScheduledExecutorService executor)

Computes a method that would delay ticks using an exponential backoff.

Parameters:

numRetries - the max number of retries

firstBackoff - the delay of the first backoff

maxBackoff - the max backoff

jitterFactor - the jitter factor in [0, 1]

executor - the executor used for the delay

Returns:

the function

randomExponentialBackoffFunctionExpireAt

public static Function<Multi<Throwable>,org.reactivestreams.Publisher<Long>> randomExponentialBackoffFunctionExpireAt(long expireAt,
                                                                                                                      Duration firstBackoff,
                                                                                                                      Duration maxBackoff,
                                                                                                                      double jitterFactor,
                                                                                                                      ScheduledExecutorService executor)

Computes a method that would delay ticks using an exponential backoff. Will keep retrying until an expiration time. The last attempt will start before the expiration time.

Parameters:

expireAt - absolute time in millis that specifies when to give up.

firstBackoff - the delay of the first backoff

maxBackoff - the max backoff

jitterFactor - the jitter factor in [0, 1]

executor - the executor used for the delay

Returns:

the function